Weather strip



May 26, 1942. A. H. KUHLMANN WEATHER STRIP Filed Nov. 14, 1938 2 Sheets-Sheet l W W /////////////W/ A p INVENTOR.

ARTHUR/l MHLMANN ATTORNEY.

May 26, 1942. A. H. KUHLMANN 2,234,153

WEATHER STRIP Filed Nov. 14, 1938 2 Sheets-Sheet 2 MW/ 6 @MW/ INVENI'OR."

ARTHUR H Kym. MA /v/v- AT'TORNEY.

warping, so that the STATES PATENT OFFICE 2,284,153 WEATHER, STRIP Arthur H. Kuhlmann, University City, Mo. I Application November 14, 1938, Serial No. 240,242

2 Claims.

This invention relates to weather strips.

It is an object of the invention to provide an improved weather seal for windows of metal or wood construction.

The weather strip provided by this invention will compensate for side or cross movement of the sash brought about by swelling, shrinking, or .weather seal will not be broken and so that the sash will not stick or bind.

In addition this weather strip permits ex-' tremely easy removal of the sash without distorting or injuring the weather strip or sash in any manner.

The sash of a Window equipped with this.

weather strip may be removed in considerably less time and with considerably less work than is necessary for other types of weather strip of the same effectiveness.

Additional objects and advantages will appear from the following detailed description of one embodiment of myinvention and the accompany- 1 ing drawings.

Fig. 1 is a horizontal sectional view through a portion of a window frame and upper and lower sashes to which the weather strip has been applied.

Fig. 2 is a perspective View of a section of window frame and sash with the weather strip protruding therefrom to more clearly illustrate its design.

Fig. 3 is an exploded of the weather strip.

Fig. 4 is a perspective view of a section of weather strip of my invention provided with a wood fillet for use as shown in Fig. 5.

Fig. 5 is a horizontal section through a portion of a window frame and upper and lower sashes equipped with my weather strip used with a wood fillet.

perspective of a section Fig. 6 is a perspective view of an optional form of my weather strip.

Fig. 7 is a horizontal section through a portion of a window frame and upper and lower sashes equipped with the weather strip shown in Fig. 6.

Fig. 8 is a perspective of seal with this weather strip.

Referring now to the drawings, 5 and 6 are upper and lower sashes respectively. These sashes slide vertically in their respective guide ways formed by the jamb 7, the inside stop 9, and the outside stop II. A groove or channel I3 in the jamb 1 forms a seat for a spacing member or parting bead I5 which replaces the conven pad useful as an air' tional parting bead of wood running from head to sill frame members. formed of some non-rusting metal such as copper, brass, zinc, or aluminum shaped as shown as a hollow U-shaped metal member provided with folded portions l1, and secured to the window as by screws I8. These folded portions form a narrow slot or guideway I9. It would, of course, be possible to provide a parting strip of equal effectiveness by securing folded metal portions to a narrow wood strip or providing guideways in any other suitable manner which would allow movement between a sealing or floating member and the guideway.

A floating member 20 formed of metal is positioned in the guideways I9 to form an air seal therewith and yet allow lateral movement thereof. I prefer to form narrow folds for guideways so that the floating member will fit snugly enough to form the air seal and yet not so snugly as to prevent lateral movement. This floating member is provided with a portion 2| to cooperate with a guideway or groove 23 on the sash as shown.

The guideway on the sash is designed to slidably engage the portion 2| of the sealing mem-' ber and at the same time, to allow movement of the sash in ,a direction at right angles to the face of the sash. Thus the floating member and sash guideway slidably engage for longitudinal movement and at the same time, allow transverse .movement of the sash. Since the floating mem- (in a direction at right angles to the face of the sash) with respect to the floating member, movement of sash or frame, because of swelling, shrinking, or warping, in any direction, can be compensated. Thus .any type of warpage combined with shrinkage and swelling will not impair the weather seal or cause the sash. The slot or lined if desired. l V

A felt pad 25 (Fig. .8) secured as by rivets 25 to a metal plate 21 is fastened to one ofthe sashes as shown (Fig. 5) to prevent air leakage at that point. The felt pad 25 is attached to the window sash by nailing plate 21 to the top of lower sash 6 and serves to'fill the space'between the parting bead thus prevent air from passing along the parting bead where the sashes overlap. V

In Figs. 6 and 7, the floating member is slightly groove 23 may be metal changed and provided with a fold 30 to cooperate The member I5 may be sticking or binding of I5 and the sashes 5 and 6 andsecond portion, the longitudinal groove in the Wooden sash and: said folded end of the floating member being dimensioned to form an air seal therebetween and being arranged to provide metal to wood bearing contact and thereby permit ready longitudinal movement of the sash relative to the floating member,- said floating member having a frictional rather than a positive engagement with the elements of the weath- 10 er seal.

ARTHUR H. KUHLMANN. 

